Met my friend

The day before yesterday I met my best friend. I have been worried about what I would say to her. That's because her sister suddenly died last month. She died of a heart failure, so my friend didn't prepare herself mentally at all. I had no idea what I should say to her in such a sad case. But she looked livelier than I thought, so I felt a little relieved. She said that she has been up and down. I have a sister, too, so when I think about her sadness, I really feel it must be unbearable. Today, she told me a lot of memories of her sister. Yesterday she emailed me and thanked me for listening to her a lot and it helped her to become comfortable. That is the only thing I can do for her now. I am going to visit her sister's grave next month.